Home / 12,358.07-18,555.44-11,927.50

Finding the Fourth Proportional to 12,358.07, 18,555.44 and 11,927.50

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Solution

The fourth proportional to 12,358.07, 18,555.44 and 11,927.50 is: 17,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.07 : 18,555.44 = 11,927.50 : x
  2. Step 2: Convert to fraction form
    12,358.07/18,555.44 = 11,927.50/x
  3. Step 3: Cross multiply
    12,358.07x = 18,555.44 × 11,927.50
  4. Step 4: Simplify right side
    12,358.07x = 221,320,092.81
  5. Step 5: Solve for x
    x = 221,320,092.81/12,358.07
  6. Step 6: Final answer
    x = 17,908.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.